Michael Bloomberg Won't Sit on a Board if He's Not in Charge

The National September 11 Memorial Museum, which opened to the public this week, is one of many cultural projects championed by New York's former mayor, Michael Bloomberg.

During his 12 years in office, the Bloomberg administration shepherded the construction of the museum. It also served as an incubator for the Culture Shed, a planned exhibition space in the Hudson Yards development on the West Side of Manhattan, and a...